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* Another bug with ligature-blocking?
@ 2021-03-24 15:48 denis.maier
  2021-03-24 16:41 ` Hans Hagen
  0 siblings, 1 reply; 4+ messages in thread
From: denis.maier @ 2021-03-24 15:48 UTC (permalink / raw)
  To: ntg-context


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Hi,

I just ran into something strange with ligature blocking:

---------------------------------------------------------------------------------------
\blockligatures[begrif:fl:ich]

\definefontfeature[default][default][dlig=yes,liga=yes,]
\definefontfeature[default:block][default][blockligatures=yes]

\definefontfamily[times][rm][Times New Roman]
\definefontfamily[termes[rm][TeX Gyre Termes]

\starttext
\switchtobodyfont[times]
\definedfont[Serif*default]
begrifflich
\blank

\definedfont[Serif*default:block]
begrifflich


\switchtobodyfont[termes]
\definedfont[Serif*default]
begrifflich
\blank

\definedfont[Serif*default:block]
begrifflich

\stoptext
---------------------------------------------------------------------------------------

With <Times New Roman> I'm getting < begriff|lich> when blockligatures is activated. Does anyone know what's going on there?

Best,
Denis

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^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: Another bug with ligature-blocking?
  2021-03-24 15:48 Another bug with ligature-blocking? denis.maier
@ 2021-03-24 16:41 ` Hans Hagen
  2021-03-24 19:20   ` denis.maier
  0 siblings, 1 reply; 4+ messages in thread
From: Hans Hagen @ 2021-03-24 16:41 UTC (permalink / raw)
  To: mailing list for ConTeXt users, denis.maier

On 3/24/2021 4:48 PM, denis.maier@ub.unibe.ch wrote:

> \definefontfamily[times][rm][Times New Roman]
don't assume beforehand that something that doesn't work as expected is 
a bug

the font just has no ligatures defined which you can remedy (in this 
cae) with because it does have the glyphs

\startluacode
     fonts.handlers.otf.addfeature {
         name = "moreligatures",
         type = "ligature",
         data = {
             ['ff'] = { "f", "f" },
             ['fi'] = { "f", "i" },
             ['fl'] = { "f", "l" },
         }
     }
\stopluacode


\blockligatures[begrif:fl:ich]
\definefontfeature[default][default][dlig=yes,liga=yes,moreligatures=yes]
\definefontfamily[times][rm][Times New Roman]
\definefontfamily[termes[rm][TeX Gyre Termes]

\definefontfeature[default:block][default][blockligatures=yes]

\starttext

{\switchtobodyfont[times] \definedfont[Serif*default]        begrifflich 
ff fi fl\blank
                           \definedfont[Serif*default:block] 
begrifflich ff fi fl\blank}
{\switchtobodyfont[termes]\definedfont[Serif*default]        begrifflich 
ff fi fl\blank
                           \definedfont[Serif*default:block] 
begrifflich ff fi fl\blank}

\stoptext



-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
        tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-----------------------------------------------------------------
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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___________________________________________________________________________________

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: Another bug with ligature-blocking?
  2021-03-24 16:41 ` Hans Hagen
@ 2021-03-24 19:20   ` denis.maier
  2021-03-24 21:21     ` Hans Hagen
  0 siblings, 1 reply; 4+ messages in thread
From: denis.maier @ 2021-03-24 19:20 UTC (permalink / raw)
  To: j.hagen, ntg-context

> -----Ursprüngliche Nachricht-----
> Von: Hans Hagen <j.hagen@xs4all.nl>
> Gesendet: Mittwoch, 24. März 2021 17:42
> An: mailing list for ConTeXt users <ntg-context@ntg.nl>; Maier, Denis
> Christian (UB) <denis.maier@ub.unibe.ch>
> Betreff: Re: [NTG-context] Another bug with ligature-blocking?
> 
> On 3/24/2021 4:48 PM, denis.maier@ub.unibe.ch wrote:
> 
> > \definefontfamily[times][rm][Times New Roman]
> don't assume beforehand that something that doesn't work as expected is a
> bug

Sorry, Hans, I didn't mean to be offensive.

> 
> the font just has no ligatures defined which you can remedy (in this
> cae) with because it does have the glyphs
> 
> \startluacode
>      fonts.handlers.otf.addfeature {
>          name = "moreligatures",
>          type = "ligature",
>          data = {
>              ['ff'] = { "f", "f" },
>              ['fi'] = { "f", "i" },
>              ['fl'] = { "f", "l" },
>          }
>      }
> \stopluacode
> 
> 
> \blockligatures[begrif:fl:ich]
> \definefontfeature[default][default][dlig=yes,liga=yes,moreligatures=yes]
> \definefontfamily[times][rm][Times New Roman]
> \definefontfamily[termes[rm][TeX Gyre Termes]
> 
> \definefontfeature[default:block][default][blockligatures=yes]
> 
> \starttext
> 
> {\switchtobodyfont[times] \definedfont[Serif*default]        begrifflich
> ff fi fl\blank
>                            \definedfont[Serif*default:block] begrifflich ff fi fl\blank}
> {\switchtobodyfont[termes]\definedfont[Serif*default]        begrifflich
> ff fi fl\blank
>                            \definedfont[Serif*default:block] begrifflich ff fi fl\blank}
> 
> \stoptext
>

I'm not sure I understand what is going on here. I thought \blockligatures simply means that instead of a ligature you'll have the regular glyphs in the output. Is that not correct?

Denis
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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wiki     : http://contextgarden.net
___________________________________________________________________________________

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: Another bug with ligature-blocking?
  2021-03-24 19:20   ` denis.maier
@ 2021-03-24 21:21     ` Hans Hagen
  0 siblings, 0 replies; 4+ messages in thread
From: Hans Hagen @ 2021-03-24 21:21 UTC (permalink / raw)
  To: denis.maier, ntg-context

On 3/24/2021 8:20 PM, denis.maier@ub.unibe.ch wrote:
>> -----Ursprüngliche Nachricht-----
>> Von: Hans Hagen <j.hagen@xs4all.nl>
>> Gesendet: Mittwoch, 24. März 2021 17:42
>> An: mailing list for ConTeXt users <ntg-context@ntg.nl>; Maier, Denis
>> Christian (UB) <denis.maier@ub.unibe.ch>
>> Betreff: Re: [NTG-context] Another bug with ligature-blocking?
>>
>> On 3/24/2021 4:48 PM, denis.maier@ub.unibe.ch wrote:
>>
>>> \definefontfamily[times][rm][Times New Roman]
>> don't assume beforehand that something that doesn't work as expected is a
>> bug
> 
> Sorry, Hans, I didn't mean to be offensive.

it has more to do with searching for solutions using the subjects of 
mail ... in which case 'bug' is not a good one

>>
>> the font just has no ligatures defined which you can remedy (in this
>> cae) with because it does have the glyphs
>>
>> \startluacode
>>       fonts.handlers.otf.addfeature {
>>           name = "moreligatures",
>>           type = "ligature",
>>           data = {
>>               ['ff'] = { "f", "f" },
>>               ['fi'] = { "f", "i" },
>>               ['fl'] = { "f", "l" },
>>           }
>>       }
>> \stopluacode
>>
>>
>> \blockligatures[begrif:fl:ich]
>> \definefontfeature[default][default][dlig=yes,liga=yes,moreligatures=yes]
>> \definefontfamily[times][rm][Times New Roman]
>> \definefontfamily[termes[rm][TeX Gyre Termes]
>>
>> \definefontfeature[default:block][default][blockligatures=yes]
>>
>> \starttext
>>
>> {\switchtobodyfont[times] \definedfont[Serif*default]        begrifflich
>> ff fi fl\blank
>>                             \definedfont[Serif*default:block] begrifflich ff fi fl\blank}
>> {\switchtobodyfont[termes]\definedfont[Serif*default]        begrifflich
>> ff fi fl\blank
>>                             \definedfont[Serif*default:block] begrifflich ff fi fl\blank}
>>
>> \stoptext
>>
> 
> I'm not sure I understand what is going on here. I thought \blockligatures simply means that instead of a ligature you'll have the regular glyphs in the output. Is that not correct?
sure but times doesn't have these ligatures (it has the shapes but not 
the features)

Hans

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
        tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-----------------------------------------------------------------
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://context.aanhet.net
archive  : https://bitbucket.org/phg/context-mirror/commits/
wiki     : http://contextgarden.net
___________________________________________________________________________________

^ permalink raw reply	[flat|nested] 4+ messages in thread

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2021-03-24 15:48 Another bug with ligature-blocking? denis.maier
2021-03-24 16:41 ` Hans Hagen
2021-03-24 19:20   ` denis.maier
2021-03-24 21:21     ` Hans Hagen

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